Acura TLX 2015-2020 Body Panel & Frame Bolt Torque Specifications
Acura TLX 2015-2020

Acura TLX 2015-2020 Body & Frame Bolt Torque Specifications

This page provides detailed torque specifications for various body bolts on the 2015-2020 Acura TLX, including front and rear panels, doors, fenders, and more. Ensure proper installation and prevent damage by following these guidelines.

Updated

Important Information

Safety guidelines and reference information for proper torque application

Quick Reference Guide
ft-lbs → Nm
× 1.356
ft-lbs → kg-m
× 0.138
Nm → ft-lbs
× 0.738
in-lbs → ft-lbs
× 0.083

Common Torque Patterns

Star Pattern

Used for wheels and other circular bolt patterns

Star Pattern torque pattern diagram showing proper bolt tightening sequence
Cross Pattern

Used for gaskets and cover plates

Cross Pattern torque pattern diagram showing proper bolt tightening sequence
Sequential Pattern

Used for head bolts and other critical components

Sequential Pattern torque pattern diagram showing proper bolt tightening sequence

Common Mistakes to Avoid

Over-tightening

Exceeding the specified torque value can stretch or break fasteners, damage threads, or crack components.

Prevention:

Always use a calibrated torque wrench and follow specifications exactly.

Incorrect Torque Sequence

Tightening bolts in the wrong order can cause uneven pressure distribution and potential leaks or damage.

Prevention:

Follow the manufacturer's specified torque sequence pattern.

Dirty Threads

Dirt, rust, or old thread locker can affect torque readings and proper fastener tension.

Prevention:

Clean and inspect all threads before assembly. Use new thread locker if specified.

Reusing TTY Bolts

Torque-to-yield bolts are designed to stretch and must not be reused.

Prevention:

Always replace TTY bolts with new ones. They are single-use only.

Dry vs. Lubricated

Not accounting for whether torque specs are for dry or lubricated fasteners can lead to incorrect tension.

Prevention:

Check if specs are for dry or lubricated threads. Use specified lubricant when required.

Recommended Tools

Torque Wrench (1/4" Drive)

Range: 2-25 ft-lbs
Small fasteners, delicate components

Torque Wrench (3/8" Drive)

Range: 10-100 ft-lbs
Most common automotive fasteners

Torque Wrench (1/2" Drive)

Range: 30-250 ft-lbs
Large fasteners, wheels

Angle Gauge

Torque-to-yield (TTY) bolts

Torque Wrench Care

  • Calibrate annually or after 5,000 clicks
  • Store at lowest setting
  • Keep clean and lubricated

Search Specifications

Search by component name, bolt size, or description

Torque Calculator

Convert between different torque units

Body Exterior

Torque specifications for exterior body panels and related hardware.

1

Fender Bolts

M6 x 1.0
Torque Value
8 ft-lbs (11 N·m)
Important Notes
Estimated value. Use care when torquing to avoid deforming the fender.
2

Hood Hinge Bolts

M8 x 1.25
Torque Value
15 ft-lbs (20 N·m)
Important Notes
Estimated value. Torque evenly to ensure proper hood alignment.
3

Bumper Cover/Fascia Bolts

M6 x 1.0
Torque Value
7 ft-lbs (9 N·m)
Important Notes
Estimated value. Do not overtighten to prevent cracking the plastic bumper cover.
4

Grille Mounting Bolts

M5 x 0.8
Torque Value
6 ft-lbs (8 N·m)
Important Notes
Estimated value. These bolts are often small, and made from plastic, therefore only require small torque to avoid damage.
5

Headlight Assembly Bolts

M5 x 0.8
Torque Value
6 ft-lbs (8 N·m)
Important Notes
Estimated value. Be careful to not overtighten and crack the housing.
6

Tail Light Assembly Bolts

M5 x 0.8
Torque Value
6 ft-lbs (8 N·m)
Important Notes
Estimated value. Be careful to not overtighten and crack the housing.

Body Doors

Torque specifications for door components including hinges, latches and strikers.

1

Door Hinge Bolts

M10 x 1.5
Torque Value
22 ft-lbs (30 N·m)
Important Notes
Estimated value. Torque evenly to maintain door alignment.
2

Door Latch/Striker Bolts

M8 x 1.25
Torque Value
10 ft-lbs (14 N·m)
Important Notes
Estimated value. Proper torque is important for secure door closure.

Body Rear

Torque specifications for rear hatch/trunk lid and its related components.

1

Rear Hatch/Trunk Lid Hinge Bolts

M8 x 1.25
Torque Value
18 ft-lbs (24 N·m)
Important Notes
Estimated value. Torque evenly to ensure proper hatch/trunk alignment.
2

Rear Hatch/Trunk Lid Latch/Striker Bolts

M8 x 1.25
Torque Value
10 ft-lbs (14 N·m)
Important Notes
Estimated value. Proper torque is important for secure latching.

Body Interior

Torque specifications for interior components that are attached directly to the vehicle body.

1

Seat Mounting Bolts

M10 x 1.5
Torque Value
30 ft-lbs (41 N·m)
Important Notes
Estimated value. Tighten securely for occupant safety.

Body Fuel

Torque specifications for fuel tank and filler neck.

1

Fuel Tank Strap Bolts

M8 x 1.25
Torque Value
16 ft-lbs (22 N·m)
Important Notes
Ensure the straps are properly positioned before applying torque.
2

Fuel Filler Neck Bolts

M6 x 1.0
Torque Value
8 ft-lbs (11 N·m)
Important Notes
Do not overtighten these bolts to avoid damaging the filler neck.

Wheels Tires

Torque specifications for securing wheels to the vehicle.

1

Wheel Lug Nuts

M14 x 1.5
Torque Value
80 ft-lbs (108 N·m)
Important Notes
Always torque lug nuts in a star pattern. Check torque after the first 50-100 miles of driving.

Troubleshooting Guide

Common issues, diagnostic steps, and prevention guidelines

Common Issues

Bolt stretching, stripped threads, uneven torque patterns

Loose Components

Symptoms:
  • Rattling or vibration noises
  • Visible movement in components
  • Uneven panel gaps
Solutions:
  • Clean threads and mounting surfaces
  • Replace damaged fasteners
  • Apply proper torque in sequence
  • Use thread locker if specified

Stripped Fasteners

Symptoms:
  • Unable to achieve proper torque
  • Fastener spins freely
  • Visible thread damage
Solutions:
  • Use thread repair kit if appropriate
  • Install thread insert (HeliCoil)
  • Replace component if threaded hole is damaged
  • Upgrade to higher grade fastener if recommended

Overtightened Components

Symptoms:
  • Cracked or deformed parts
  • Broken fasteners
  • Compressed gaskets or seals
Solutions:
  • Replace damaged components
  • Use new fasteners
  • Follow proper torque sequence
  • Verify correct torque specifications

Diagnostic Steps

Visual inspection, torque verification, thread assessment

1

Visual Inspection

Inspect the affected area for any visible signs of damage or wear

  • Check for cracks or deformation
  • Look for signs of excessive wear
  • Verify proper fastener installation
2

Torque Verification

Verify the torque applied to the fasteners

  • Check the torque wrench calibration
  • Verify the torque specification
  • Compare the applied torque to the specification
3

Thread Assessment

Assess the condition of the threads

  • Check for signs of thread damage
  • Verify the thread type and size
  • Check for proper thread engagement

Prevention Guidelines

Best practices, maintenance tips, tool care

Best Practices

  • Always follow the recommended torque specification
  • Use the correct type and size of fasteners
  • Verify the torque wrench calibration regularly

Maintenance Tips

  • Regularly inspect the affected area for signs of wear or damage
  • Replace damaged or worn-out components promptly
  • Keep the work area clean and organized

Tool Care

  • Regularly clean and maintain the torque wrench
  • Store the torque wrench in a dry and secure location
  • Verify the torque wrench calibration before each use

Frequently Asked Questions

Find answers to common questions about torque specifications

Q1

Why are correct torque specifications important for body bolts?

Correct torque ensures proper clamping force, preventing bolts from loosening due to vibration or stress. Under-torquing can lead to component movement and rattling, while over-torquing can damage threads, deform panels, or even cause bolt failure. For example, improperly torqued bumper bolts might cause the bumper to sag or become misaligned.

Q2

What should I do if a bolt feels like it's stripping while tightening?

Stop immediately. Do not force the bolt. If the bolt threads are damaged, remove it and inspect both the bolt and the threaded hole for damage. If the hole is damaged, it may need to be re-tapped or repaired. A stripped bolt can lead to component failure and unsafe conditions.

Q3

Can I reuse body bolts?

Generally, body bolts can be reused if they are in good condition. However, always inspect them for any damage, thread deformation, rust, or stretch before re-installation. If a bolt shows any signs of wear, it should be replaced to ensure reliable clamping force. Consider replacing bolts used in critical areas like hinges.

Q4

Do I need to use threadlocker on body bolts?

Threadlocker is not typically required for most body bolts unless specified by the manufacturer. However, it can be beneficial in areas prone to vibration, such as door hinges or areas near the suspension. If you choose to use threadlocker, use a low to medium strength variant designed for automotive applications and always follow the manufacturer's torque specification with threadlocker applied. Avoid high strength threadlocker unless specified.

Q5

How often should I check body bolt tightness?

Body bolts should be checked periodically as part of routine vehicle maintenance. A good practice is to check bolts after any body repairs or modifications, and then again after 100-200 miles. Also, checking them before winter or after harsh weather is advisable. Listen for rattles or squeaks that may indicate loose bolts and investigate.

Environmental Considerations

Temperature, humidity, and seasonal effects on torque specifications

Temperature Effects

Includes: High Heat, Cold Weather, Thermal Cycling

Temperature can significantly impact torque values and fastener behavior

Cold Weather

Effects:
  • Increased material brittleness
  • Higher torque required due to thread contraction
  • Reduced thread lubricant effectiveness
Recommendations:
  • Allow components to warm to room temperature when possible
  • Consider using winter-grade thread lubricants
  • Check torque values more frequently during winter months

Hot Weather

Effects:
  • Thermal expansion of components
  • Decreased friction in threads
  • Accelerated lubricant breakdown
Recommendations:
  • Check torque when components are at normal operating temperature
  • Use temperature-resistant thread lockers
  • Consider re-torquing after heat cycles

Humidity and Corrosion

Covers: Rust Prevention, Salt Exposure, Moisture Control

Moisture and corrosion can affect fastener integrity and torque values

High Humidity

Effects:
  • Accelerated corrosion formation
  • Reduced friction coefficient
  • Potential thread seizing
Prevention:
  • Use corrosion-resistant fasteners
  • Apply appropriate anti-seize compounds
  • Maintain proper protective coatings

Salt Exposure

Effects:
  • Rapid corrosion development
  • Thread damage
  • Seized fasteners
Prevention:
  • Regular underbody washing
  • Use of sacrificial anodes where appropriate
  • Application of protective coatings

Seasonal Maintenance

Spring, Summer, Fall, and Winter maintenance schedules

Spring

  • Inspect for winter damage
  • Clean and protect exposed fasteners
  • Check torque on critical components

Summer

  • Monitor heat-affected components
  • Check expansion-related loosening
  • Inspect cooling system mounts

Fall

  • Prepare for winter conditions
  • Apply corrosion protection
  • Verify all fasteners are properly torqued

Winter

  • More frequent inspection of critical fasteners
  • Check for salt damage
  • Monitor suspension component torque

Related Resources

Tools, service procedures, and technical bulletins

Recommended Tools

Torque Wrench (1/2 inch drive)

A 1/2 inch drive torque wrench is crucial for accurately tightening body bolts to specification. A range of 10-150 ft-lbs should suffice for most applications on the TLX body.

  • Precise torque application
  • Audible click when torque is reached
  • Durable construction
Learn more

Torque Wrench (3/8 inch drive)

A 3/8 inch drive torque wrench is useful for some smaller body bolts and for areas with less clearance. A range of 5-80 ft-lbs should be adequate.

  • Precise torque application
  • Audible click when torque is reached
  • Compact design
Learn more

Socket Set (Metric)

A comprehensive set of metric sockets is needed to fit the various sizes of body bolts used on the Acura TLX. Typically sizes between 8mm and 19mm are most common.

  • Variety of socket sizes
  • Durable construction
  • Easy to identify sizes
Learn more

Socket Extensions

Socket extensions of various lengths are needed to reach recessed bolts and other difficult areas.

  • Provide extra reach
  • Available in different lengths
  • Durable construction
Learn more
Service Procedures

Body Bolt Torque Application

This procedure outlines the general process for applying torque to body bolts on the Acura TLX. Always refer to the specific service manual for accurate torque specifications for each bolt.

  • Identify the specific bolt and its location on the vehicle.
  • Consult the vehicle's service manual or a reliable torque specification chart to determine the correct torque value for the bolt.
  • Select the appropriate size socket and attach it to the torque wrench.
  • Carefully position the socket onto the bolt head ensuring a snug fit.
  • Apply force to the torque wrench until the wrench clicks, indicating the specified torque has been reached.
  • If the bolt requires a specific torque sequence follow the diagram as described in the manual.
  • Do not over-tighten the bolt.
  • Repeat these steps for any remaining bolts in the area.
View full procedure

Bolt Inspection Prior to Installation

This procedure details what you should do before installing a bolt for proper results

  • Visually inspect each bolt for any damage or corrosion prior to installation.
  • Ensure the threads of the bolt are clean and free of debris.
  • Inspect the corresponding nut or mounting hole for any damage or obstructions.
  • Replace any damaged or corroded bolts or mounting hardware before installation.
  • If you are installing new bolts use appropriate anti-seize when indicated in the manual.
View full procedure
Technical Service Bulletins

Potential for Loose Body Bolts

2017-05-15

Some 2015-2016 Acura TLX vehicles may exhibit loose body bolts due to manufacturing tolerances. This can result in increased NVH (Noise, Vibration, Harshness) or misalignment of body panels.

2015-2016

Resolution: Inspect all body bolts for proper torque, especially those attaching body panels. Tighten all bolts to the manufacturer's recommended torque specification. Use thread locker if bolts are found to be frequently loosening.

Corrosion of Lower Body Bolts

2019-02-28

Vehicles operated in regions with high exposure to road salt or moisture may experience corrosion on lower body bolts, potentially leading to bolt failure. Affected areas include those around the wheel wells, rocker panels, and floor pans.

2015-2020

Resolution: Inspect the affected body bolts for corrosion. Remove and clean bolts, and apply a corrosion inhibiting compound before re-installation. Replace any bolts exhibiting significant corrosion. Consider applying an undercoating in areas prone to corrosion.

About the Author

Expert automotive knowledge and experience

Alan Montanye - Automotive Technical Specialist
ASE

Alan Montanye

Automotive Technical Specialist

ASE Master Certified Technician with over a decade of hands-on experience in automotive repair and diagnostics.

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  • All specifications, including torque values, fluid capacities, and maintenance procedures, should be verified against your vehicle's factory service manual.
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